diff options
| author | Roland McGrath <roland@redhat.com> | 2007-01-25 20:19:51 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-01-25 20:50:37 -0500 |
| commit | 5ad0d383ddbf0d2fce43b8aac267a6c299fd2dff (patch) | |
| tree | a331a5c7a9796678073fad8e1a5e9dfa053cd6b5 | |
| parent | 99abfeafb5f2eea1bb481330ff37343e1133c924 (diff) | |
[PATCH] x86_64: fix put_user for 64-bit constant
On x86-64, a put_user call using a 64-bit pointer and a constant value that
is > 0xffffffff will produce code that doesn't assemble. This patch fixes
the asm construct to use the Z constraint for 32-bit constants.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/asm-x86_64/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index d5dbc87274f8..c0eac519840b 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h | |||
| @@ -157,7 +157,7 @@ do { \ | |||
| 157 | case 1: __put_user_asm(x,ptr,retval,"b","b","iq",-EFAULT); break;\ | 157 | case 1: __put_user_asm(x,ptr,retval,"b","b","iq",-EFAULT); break;\ |
| 158 | case 2: __put_user_asm(x,ptr,retval,"w","w","ir",-EFAULT); break;\ | 158 | case 2: __put_user_asm(x,ptr,retval,"w","w","ir",-EFAULT); break;\ |
| 159 | case 4: __put_user_asm(x,ptr,retval,"l","k","ir",-EFAULT); break;\ | 159 | case 4: __put_user_asm(x,ptr,retval,"l","k","ir",-EFAULT); break;\ |
| 160 | case 8: __put_user_asm(x,ptr,retval,"q","","ir",-EFAULT); break;\ | 160 | case 8: __put_user_asm(x,ptr,retval,"q","","Zr",-EFAULT); break;\ |
| 161 | default: __put_user_bad(); \ | 161 | default: __put_user_bad(); \ |
| 162 | } \ | 162 | } \ |
| 163 | } while (0) | 163 | } while (0) |